Nut-lock.



No. 838,917. i PATENTED DEG. 18, 1906.

G. N. TREADWELL.

NUT LOCK.

APPLICATION FILED JULY 20. 1906.

UNrrEn sra'rns narnnfr orrron.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application tiled July 20,1906. Serial No. 326,9 81.

To @ZZ whom, t may concern:

Be it known that I, CHARLES N. TREAD- wnLL, a citizen of the United States, and a resident of Middletown, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvements in Nut-Locks, which improvements are fully set forth in the following specification.

This invention relates to improvements in devices of that class largely availed of for locking bolt-nuts when set for service against undue reverse or unfastening action, such devices being commonly known as I nut-locks.

The object of this invention is to provide a nut-lock which shall be simple, inexpensive, and novel as regards construction, durable, eificient, and reliable in practical service, which shall embody features of construction whereby the operation of relatively adjusting the several elements or parts of the general construction for fastening purposes and likewise the operation of dissembling such elements or parts shall be materially facilitated, and which shall possess certain welldeflned advantages over prior analogous devices.

The invention consists in the noveldisposition and relative arrangement of the various coperating parts thereof whereby the attainment of the foregoing object is rendered practicable in certain combinations and in certain details of construction, all of which will be specifically hereinafter referred to, and set forth in the appended claims.

The invention is clearly illustrated in the accompanying drawings, wherein similar reference characters denote like parts throughout the several views.

As to said drawings, Figure 1 is a side elevation of a nut-lock embodying my said improvements. Fig. 2 is a view similar to Fig. l, partly in vertical section. Fig. 3 is a cross-section along the line a a of Fig. 1. Fig. 4 is a perspective view of the intermediate check-ring detached from the general construction. Fig. 5 is a detail view showing in perspective an elasticallycontrolled stop which I purpose making use of for interlocking certain of the cooperating parts of the general construction.

In a general sense my present invention comprises a threaded bolt, a service-nut operating on the threads of said bolt, a lockingnut also operating on the threads of said bolt outside of said service-nut, a check-ring on and movable longitudinally only along said bolt and situated between said service-nut and said locking-nut, the latter and said check-ring being free to undergo at all times each its prescribed movement independently of the other, and means for interlocking said locking-nut and check-ring when duly adjusted for service.

Having reference to the accompanying drawings, 2 denotes a bolt having a head 2 at one end threaded along its opposite end portion and having a slot or groove 2 eX- tending longitudinally along its threaded portion, and 3 denotes a service-nut operating on the threads of said bolt. 4 denotes a locking-nut also operating on the threads of the bolt 2 outside of the nut 3. The lockingnut 4 is preferably formed many-sided, as shown, and is provided at its rear face with an annular flange 4, forming a socket 4.

5 denotes a check-ring disposed in practice on the bolt 2 between the locking-nut 4 and the service-nut 3, said check-ring being provided at a suitable point along its inner circumference with a detent or tongue 5,

adapted to take into the groove 2 and accordingly prevent movement of the ring 5 in all directions relatively to the bolt 2, except longitudinally therealong, which latter movement said ring is free to undergo.

From the description thus far given of the locking-nut 4 and the check-ring 5 it will be seen that the former is free to move spirally to and fro along the bolt 2 independently of the latter and that the check-ring is free to move longitudinally along said bolt independently of said locking-nut; also, that when the parts are adjusted for service the check-ring 5 occupies the socket 4 and, further, that even under this condition of the parts said locking-nut and check-ring are free each to undergo its prescribed movement independently of the other and relatively to the bolt 2. This feature of my invention is important in that it not only materially facilitates the operation of adjusting these parts for practical purposes, but permits a sung relative adjustment of the same with respect to the service-nut 3.

It now remains to provide means for serviceably interlocking the locking-nut 4 and check-ring 5 when thus relatively adjusted, and while various devices may be availed of for this purpose I prefer to provide the flange 4 with a series of radial openings 5 and the IOO IIO

section.

flange 4 is'suitablyjchanneled to insure a' check-ring 5 with a series oi' peripheral recesses or openings 6, a detached stop 6* being availed of for insertion into any one of the openings 5 and such recess or opening 6 as may be brought into registry therewith under proper relative adjustment of the locking-nut-i andthe check-ring 5, said stop being of any appropriate form, and in this connection I further prefer to make use of an elastic or resilient keeper 6, here shown as encircling'the flange l and yieldingly graspingv the same by its inherent' resiliency. Again, I prefer that the stop 6 beformed integral with the keeper 6 substantially as indicated in the drawings, where said stop is shown as comprising an end portion of the keeper 6, turned radially inward vtoward the center of the circle described by said keeper and' being'approximately tubular in cross- The outer or peripheral 'face of the more eilicient disposition of the keeper 6 in practice, as will be rreadily understood and as clearly 'indicated in Figs. 2' and 3 of the drawings; It may be herev pointed out that the openings 5" may be so spaced or arrangedv relatively to the recesses or openings 6, or

vice versa', thatr one or even' more of the openings shall stand in registry with a correspondinguiu'mber of the recesses or openings 6 when the check-ring 5 occupies the socket' 4, thereby permitting the interlocking, as through the medium ofl the stop 6', of

the check-ring 5 and locking-nut 4 without the necessity of any appreciable vreadjustment of the latter after the same shall have been fairly set for service. This constitutes a marked feature of advantage in my present improved nut-lock over -prior analogous devices, 4an' advantage which 'follows the' novel arrangement and construction of the parts of my improved nut-lock, whereby the locking-nut and check-ring are permitted to un-` dergo 'at all'times each its prescribed'action 'independently of the other, as heretofore eX- plained.

The operation of my improved nut-lock will be apparent from the foregoing description'thereof, it being necessary only to remark that when the locking-nut 4 and checkring 5 are properly adjusted for' service keeper 6 is sprung into place for yieldingly grasping the flange 4, with the stop 6 projecting through an opening 5 and into a recess or opening 6, registering with such opening 5, said stop vbeing thus yieldingly kept in place and the locking-nut and check-ring being' accordingly thereby interlocked, and that said stop, with its resilient keeper 6, when availed of may be readily displaced from its position of service by means of any appropriate and well-known tool or implement, whereupon liberation of parts 4, 5, and 3 isefiected.

It will be seen that my improved nut-lock is particularly well adapted for the purposes for which it is intended and, further, that the same may be modified to some extent, particularly as regards the features of the construction whereby the freely-movable locking-n ut and check-ring are interlocked for service without materially departing from the spirit and principle of my invention.

Having thus described my invention, what Ivclaim, and desire to secure by Letters Patent, is-

l. A nut-lock comprising a threaded bolt; a check-ring on, and movable longitudinally only along, said bolt, said check-ring having a series of peripheral recesses or openings; a nut operating on the threads of said bolt, outside of said check-ring, said nut havingan'A annular flange at its rear face, provided withl a series of openings, one or more of which openings may be caused to register with a like number ol the recessesl or openings-y formed along the periphery of said checkring, andsaid nut and saidcheck-ring being free to undergo at all times each its prescribed movement independently ol the other; and a stop for interlocking said nut and said check-ring by way'of any of the openingsin said flange and such peripheral recess or opening of the check-ring as may be inregistry therewith, substantially as herein specified;

2. Ay nut-lock comprising a threaded bolt; a nut operating on the threads of'said bolt; a check-ring on said bolt at the inner side of said nut, and movable longitudinally only along said bolt, said nut having an annular flange surrounding said check-ring; and a removable stop projecting through the flange aforenamed and engaging said check-ring, said nut and check-ring being, in the labsence of said stop, free to undergo vat all times each its prescribed movement independently of' the other, substantially as herein specified.

3. A nut-lock comprising a threadedbolt; a nut operating on the threads of said bolt", a check-ring on said bolt at the inner side of said nut, and movable longitudinally only alongsaid bolt, said nut having an annular flange surrounding said check-ring; and a spring-controlled, removable stop projecting througl'i the flange aforenamed and engaging said check-ring, said nut and check-ring being, in the absence of said stop, free to undergo at all times each itsprescribed movement. independently of the other, substantially as herein specified.

4. A nut-lock comprising a threaded bolt; a nut operating on the threads of said bolt, and provided with an annular flange having a series of radial openings; a check-ring on said bolt and movable longitudinally only therealong, said check-ring having a series of peripheral recesses or openings and being situated at the rear of said nut and surrounded by the flange thereof; a removable stop projecting through said flange by way of one ICO IIO

of the openings therein and inte such recess l said stop, free to undergo at all times7 each or opening of the check-ring as may be in l its prescribed movement independently of registry with such flange-opening and a rel the otherJ substantially as herein specified.

slent keeper, the latter engaging Said flange CHARLES N. TREADWELL. 5 Crcumferentially and serving to yieldngly Witnesses:

prevent displacement of said stop, Jalle said CHARLES N. BRIGGs,

nut and cheek-ring being, in the absence of l M. EUGENE CULVER. 

